package com.atguigu.gulimall.cart.vo;


import java.math.BigDecimal;
import java.util.List;

/**
 * 商品总价动态计算，不需要传入
 */
public class Cart {
    List<CartItem> items;  // 购物车商品项
   private Integer countNum; // 商品数量
   private Integer countType; // 商品类型数量
   private BigDecimal totalAmount; // 总价
    BigDecimal reduce = new BigDecimal("0"); // 减免价格

    public Integer getCountNum() {
        int count = 0;
        if (items!=null&&items.size()>0) {
            for (CartItem item : items) {
                count += item.getCount();
            }
        }
        return count;
    }
    public Integer getCountType() {
        int count = 0;
        if (items!=null&&items.size()>0) {
            for (CartItem item : items) {
                count += 1;
            }
        }
        return count;
    }

    public BigDecimal getTotalAmount() {
        // 1.商品总价
        BigDecimal amount = new BigDecimal("0");
        if (items!=null&&items.size()>0) {
            for (CartItem item : items) {
                {
                    if (item.getCheck()){
                        BigDecimal totalPrice = item.getTotalPrice();
                        amount = amount.add(totalPrice);
                    }

                }
            }
        }
        // 2.减免价格
        BigDecimal subtract = amount.subtract(getReduce());

        return subtract;
    }

    public List<CartItem> getItems() {
        return items;
    }

    public void setItems(List<CartItem> items) {
        this.items = items;
    }









    public BigDecimal getReduce() {
        return reduce;
    }

    public void setReduce(BigDecimal reduce) {
        this.reduce = reduce;
    }
}
